Water filter key



FIG. 1 is a left front perspective view of a water filter key showing afirst embodiment of our new design;

FIG. 2 is a front view of the water filter key of FIG. 1 ;

FIG. 3 is a bottom view of the water filter key of FIG. 1 ;

FIG. 4 is a left front perspective view of a water filter key showing asecond embodiment of our new design;

FIG. 5 is a front view of the water filter key of FIG. 4 ;

FIG. 6 is a bottom view of the water filter key of FIG. 4 ;

FIG. 7 is a left front perspective view of a water filter key showing athird embodiment of our new design;

FIG. 8 is a front view of the water filter key of FIG. 7 ;

FIG. 9 is a bottom view of the water filter key of FIG. 7 ;

FIG. 10 is a left front perspective view of a water filter key showing afourth embodiment of our new design;

FIG. 11 is a front view of the water filter key of FIG. 10 ;

FIG. 12 is a bottom view of the water filter key of FIG. 10 ;

FIG. 13 is a left front perspective view of a water filter key showing afifth embodiment of our new design;

FIG. 14 is a front view of the water filter key of FIG. 13 ;

FIG. 15 is a bottom view of the water filter key of FIG. 13 ;

FIG. 16 is a left front perspective view of a water filter key showing asixth embodiment of our new design;

FIG. 17 is a front view of the water filter key of FIG. 16 ; and,

FIG. 18 is a bottom view of the water filter key of FIG. 16 .

The broken lines shown in the drawings illustrate portions of the waterfilter key and environment that form no part of the claimed design. Thewater filter key is shown with a symbolic break in its length. Theappearance of any portion of the water filter key between the breaklines forms no part of the claimed design.

CLAIM The ornamental design for a water filter key, substantially shownand described herein.